vserver 1.9.5.x5

[linux-2.6.git] / arch / arm / mach-footbridge / time.c

diff --git a/arch/arm/mach-footbridge/time.c b/arch/arm/mach-footbridge/time.c
index e9f5708..2c64a0b 100644 (file)
--- a/arch/arm/mach-footbridge/time.c
+++ b/arch/arm/mach-footbridge/time.c
@@ -19,75 +19,18 @@
 
 #include <linux/timex.h>
 #include <linux/init.h>
-#include <linux/interrupt.h>
 #include <linux/sched.h>
 #include <linux/mc146818rtc.h>
 #include <linux/bcd.h>
 
-#include <asm/hardware/dec21285.h>
-
 #include <asm/hardware.h>
-#include <asm/irq.h>
-#include <asm/leds.h>
-#include <asm/mach-types.h>
 #include <asm/io.h>
-#include <asm/hardware/clps7111.h>
 
 #include <asm/mach/time.h>
+#include "common.h"
 
 static int rtc_base;
 
-#define mSEC_10_from_14 ((14318180 + 100) / 200)
-
-static unsigned long isa_gettimeoffset(void)
-{
-       int count;
-
-       static int count_p = (mSEC_10_from_14/6);    /* for the first call after boot */
-       static unsigned long jiffies_p = 0;
-
-       /*
-        * cache volatile jiffies temporarily; we have IRQs turned off. 
-        */
-       unsigned long jiffies_t;
-
-       /* timer count may underflow right here */
-       outb_p(0x00, 0x43);     /* latch the count ASAP */
-
-       count = inb_p(0x40);    /* read the latched count */
-
-       /*
-        * We do this guaranteed double memory access instead of a _p 
-        * postfix in the previous port access. Wheee, hackady hack
-        */
-       jiffies_t = jiffies;
-
-       count |= inb_p(0x40) << 8;
-
-       /* Detect timer underflows.  If we haven't had a timer tick since 
-          the last time we were called, and time is apparently going
-          backwards, the counter must have wrapped during this routine. */
-       if ((jiffies_t == jiffies_p) && (count > count_p))
-               count -= (mSEC_10_from_14/6);
-       else
-               jiffies_p = jiffies_t;
-
-       count_p = count;
-
-       count = (((mSEC_10_from_14/6)-1) - count) * (tick_nsec / 1000);
-       count = (count + (mSEC_10_from_14/6)/2) / (mSEC_10_from_14/6);
-
-       return count;
-}
-
-static irqreturn_t
-isa_timer_interrupt(int irq, void *dev_id, struct pt_regs *regs)
-{
-       timer_tick(regs);
-
-       return IRQ_HANDLED;
-}
-
 static unsigned long __init get_isa_cmos_time(void)
 {
        unsigned int year, mon, day, hour, min, sec;
@@ -133,8 +76,7 @@ static unsigned long __init get_isa_cmos_time(void)
        return mktime(year, mon, day, hour, min, sec);
 }
 
-static int
-set_isa_cmos_time(void)
+static int set_isa_cmos_time(void)
 {
        int retval = 0;
        int real_seconds, real_minutes, cmos_minutes;
@@ -186,34 +128,7 @@ set_isa_cmos_time(void)
        return retval;
 }
 
-
-static unsigned long timer1_latch;
-
-static unsigned long timer1_gettimeoffset (void)
-{
-       unsigned long value = timer1_latch - *CSR_TIMER1_VALUE;
-
-       return ((tick_nsec / 1000) * value) / timer1_latch;
-}
-
-static irqreturn_t
-timer1_interrupt(int irq, void *dev_id, struct pt_regs *regs)
-{
-       *CSR_TIMER1_CLR = 0;
-
-       timer_tick(regs);
-
-       return IRQ_HANDLED;
-}
-
-static struct irqaction footbridge_timer_irq = {
-       .flags  = SA_INTERRUPT
-};
-
-/*
- * Set up timer interrupt.
- */
-void __init footbridge_init_time(void)
+void __init isa_rtc_init(void)
 {
        if (machine_is_co285() ||
            machine_is_personal_server())
@@ -262,35 +177,4 @@ void __init footbridge_init_time(void)
                } else
                        rtc_base = 0;
        }
-
-       if (machine_is_ebsa285() ||
-           machine_is_co285() ||
-           machine_is_personal_server()) {
-               gettimeoffset = timer1_gettimeoffset;
-
-               timer1_latch = (mem_fclk_21285 + 8 * HZ) / (16 * HZ);
-
-               *CSR_TIMER1_CLR  = 0;
-               *CSR_TIMER1_LOAD = timer1_latch;
-               *CSR_TIMER1_CNTL = TIMER_CNTL_ENABLE | TIMER_CNTL_AUTORELOAD | TIMER_CNTL_DIV16;
-
-               footbridge_timer_irq.name = "Timer1 Timer Tick";
-               footbridge_timer_irq.handler = timer1_interrupt;
-               
-               setup_irq(IRQ_TIMER1, &footbridge_timer_irq);
-
-       } else {
-               /* enable PIT timer */
-               /* set for periodic (4) and LSB/MSB write (0x30) */
-               outb(0x34, 0x43);
-               outb((mSEC_10_from_14/6) & 0xFF, 0x40);
-               outb((mSEC_10_from_14/6) >> 8, 0x40);
-
-               gettimeoffset = isa_gettimeoffset;
-
-               footbridge_timer_irq.name = "ISA Timer Tick";
-               footbridge_timer_irq.handler = isa_timer_interrupt;
-               
-               setup_irq(IRQ_ISA_TIMER, &footbridge_timer_irq);
-       }
 }